CSS3 media query based on screen size and device- orientation for desktop, tablet and smartphones.
Media Query
CSS allows us to media query based on screen size and device- orientation.
Media query allows you to customize the web page for desktop, table...

CSS3 Animations
CSS allows us to do animation without using JavaScript.
Specify some Keyframes for the animation.
As many times you want can change a CSS properties.
Animation needs to be defined with the @keyframes at rule which is then called with ...

Introduction to CSS3 :
Cascading style sheets 3
CSS stands for “Cascading style sheets”. CSS describe how HTML elements are to be displayed on screen, paper or in other media.
CSS3 is the latest evolution of the Cascading Style Sheets language and...

How to measure task execution time?
What is Stopwatch?
How to find task execution time?
What is Stopwatch?
A Stopwatch instance can measure elapsed time for one interval, or the total of elapsed time across multiple intervals.
Namespace is System.Diagno...

What is “==“ ?
The == is a comparison operator.
The == Operator compares the reference identity.
You can compare any primitive type such as int, char, float and Booleans.
The == operator returns a boolean value.
When used with objects, the == operato...

What is DirectoryInfo class?
Exposes instance methods for creating, moving and enumerating through directories and subdirectory.
It is sealed class so we cannot inherited.
DirectoryInfo class Provides Methods and Properties.
DirectoryInfo Parent class an...

What is FileInfo?
FileInfo used for typical operations such as copying, moving, renaming, creating, opening, deleting and appending to files.
It uses StreamWriter class to write data and StreamReader class to read data to the file.
It is sealed class s...